I just finished watching this video now all I can say is that you are a great teacher I have been struggling with this topic for a while. I did not hear a thing when my teacher explained I struggled with basics and I am in grade 11 talk about a grade 11 learner not knowing the basics of circuits, I would always get low marks on the circuits section but after today I can easily say it is not that hard and thank you Miss Martins
You should try to get the exam guidline/SAGS for the curriculm that you follow, it will indicate what each section/topic will more or less count in an exam!!!